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				<h1 class="content-heading">
                Query on a tree VI                </h1>
                <p>时间限制：8s&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  空间限制：1024MB</p>			</div>
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                                <h3>题目描述</h3><p><div class="legend">
<p><span style="font-size: medium">You are given a tree (an acyclic undirected connected graph) with <span class="tex-span"><i>n</i></span> nodes. The tree nodes are numbered from 1 to <span class="tex-span"><i>n</i></span>. </span></p>
<p><span style="font-size: medium">Each node has a color, white or black. All the nodes are black initially.</span></p>
<p><span style="font-size: medium">We will ask you to perfrom some instructions of the following form:</span></p>
<p></p>
<ul type="disc">
    <li><span style="font-size: medium">0 <span class="tex-span"><i>u</i></span> : ask for how many nodes are connected to <span class="tex-span"><i>u</i></span>, two nodes are connected iff all the node on the path from <span class="tex-span"><i>u</i></span> to <span class="tex-span"><i>v</i></span> (inclusive <span class="tex-span"><i>u</i></span> and <span class="tex-span"><i>v</i></span>) have a same color. </span></li>
    <li><span style="font-size: medium">1 <span class="tex-span"><i>u</i></span> : toggle the color of <span class="tex-span"><i>u</i></span>(that is, from black to white, or from white to black). </span></li>
</ul>
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</div></p><hr/><h3>输入格式</h3><p><div class="input-specification">
<p></p>
<p><span style="font-size: medium">The first line contains a number <span class="tex-span"><i>n</i></span> denoted how many nodes in the tree(<span class="tex-span">1&thinsp;&le;&thinsp;<i>n</i>&thinsp;&le;&thinsp;10<sup class="upper-index">5</sup></span>). The next <span class="tex-span"><i>n</i>&thinsp;-&thinsp;1</span> lines, each line has two numbers (<span class="tex-span"><i>u</i>,&thinsp; <i>v</i></span>) describe a edge of the tree(<span class="tex-span">1&thinsp;&le;&thinsp;<i>u</i>,&thinsp; <i>v</i>&thinsp;&le;&thinsp;<i>n</i></span>). The next line contains a number <span class="tex-span"><i>m</i></span> denoted how many operations we are going to process(<span class="tex-span">1&thinsp;&le;&thinsp;<i>m</i>&thinsp;&le;&thinsp;10<sup class="upper-index">5</sup></span>). The next <span class="tex-span"><i>m</i></span> lines, each line describe a operation (<span class="tex-span"><i>t</i>,&thinsp; <i>u</i></span>) as we mentioned above(<span class="tex-span">0&thinsp;&le;&thinsp;<i>t</i>&thinsp;&le;&thinsp;1</span>, <span class="tex-span">1&thinsp;&le;&thinsp;<i>u</i>&thinsp;&le;&thinsp;<i>n</i></span>).</span></p>
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<div class="output-specification"></div></p><hr/><h3>输出格式</h3><p><div class="output-specification">
<div class="section-title">&nbsp;</div>
<p></p>
<p><span style="font-size: medium">For each query operation, output the corresponding result.</span></p>
</div></p><hr/><h3>样例输入</h3><pre>5
1 2
1 3
1 4
1 5
3
0 1
1 1
0 1</pre><hr/><h3>样例输出</h3><pre>5
1</pre><hr/><h3>提示</h3><p>没有写明提示</p><hr/><h3>题目来源</h3><p>By xiaodao</p>
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